This discussion paper led to a publication in the <A HREF="http://www.sciencedirect.com/science/article/pii/S0167268109000109">'Journal of Economic Behavior & Organization'</A>, 2009, 70(1-2), 374-388.<P> In this paper we analyze a large sample of individual responses to six lottery questions. Wederive a simultaneous estimate of risk aversion γ and the time preference discount...</p></a>

In this paper we analyze a large sample of individual responses to six lottery questions. We

Recent theoretical work shows that folk theorems can be developed for infinite overlapping generations games. Cooperation in such games can be sustained as a Nash equilibrium. Besides the efficient cooperative equilibrium there is also the inefficient non-cooperative equilibrium. This paper...

This discussion paper resulted in a publication in the <A href="http://www.sciencedirect.com/science/article/pii/S0095069612000927">'Journal of Environmental Economics and Management'</A>, 2012, 64(3), 342-363.<P> Optimal climate policy is studied in a Ramsey growth model with exhaustible oil reserves, an infinitelyelastic supply of renewables, stock-dependent oil extraction...</p></a>

Recent theoretical work shows that folk theorems can be developed for infiniteoverlapping generations games. Cooperation in such games can be sustained as aNash equilibrium. Besides the efficient cooperative equilibrium there is alsothe inefficient non-cooperative equilibrium. This paper...

College education is not only an investment; for many people it also generates consumption benefits. If these benefits are normal goods, then the rich attend college at higher rates than the poor. Furthermore, the marginal poor student is smarter than the marginal rich student. Colleges aiming...

Previous research shows that ethnic minority students perform poorer in school when they are taught by ethnic majority teachers. Why this is the case was unclear. This paper focuses on one important potential explanation: I examine whether ethnic majority teachers grade minority and majority...

This discussion paper resulted in a publication in <A HREF="http://www.dovepress.com/condom-use-risk-perception-and-hiv-knowledge-a-comparison-across-sexes-peer-reviewed-article-HIV">'HIV/AIDS - Research and Palliative Care'</A>, 2013, 5, 283-293.<P> We analyze how HIV-knowledge influences condom use across the sexes. The empirical work is based on a household survey conducted among 1,979 households of a representative group of...</p></a>

In this paper we employ techniques developed in spatial econometrics to analyse spatial patterns of technology diffusion, to detect clusters and to estimate theoretical models that incorporate space explicitly. These techniques correct for misspecifications resulting from the omission of spatial...

Published in <A href="http://onlinelibrary.wiley.com/doi/10.1111/j.1467-9442.2010.01613.x/abstract">The Scandinavian Journal of Economics"</A>, 112(3), 618-39.<P>The perpetual inventory method used for the construction of education data per country leads to systematic measurement error. This paper analyses the effect of this measurement error on GDP regressions. There is a systematic...</p></a>